public?static?void?main(String[]?args){
final?int?START_NUM?=?1;
final?int?END_NUM?=?1000;
final?int?MOD_NUM?=?3;
for(int?i?=?START_NUM;i<=END_NUM;i++){
System.out.print(i+"\t");
}
%就是取模的意思,3的倍數特性就是對3取模等於0